Climate Change

What is the PRIMARY source of energy for Earth's Climate Change?

• Heat from the interior of the Earth

• The Sun

• Electricity from power plants

• Oil and Gas

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Why are greenhouse gases like carbon dioxide important to Earth's climate?

• They allow heat from Earth to escape the atomosphere

• They trap energy from the Sun and warm the Earth's surface

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What happens when carbon dioxide and other greenhouse gases increase in our atmosphere?

• average global temperatures increase

• average global temperatures decreased

• average global temperatures stay the same

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A primary reason we know human activity is causing global warming is

• Carbon dioxide levels have went up over the last 10 years

• Earth's atmosphere is getting thinner

• We can correlate the rise in carbon dioxide with human activities

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All of these observations are evidence that Earth's average temperature is increasing EXCEPT

• The 20 warmest years on record have all occurred since 1995

• Rising temperatures are melting glaciers

• Animals are increasing in diversity in the wild.

• Winter storms increased in frequency since 1950

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Which of the following does not increase greenhouse gases?

• Driving cars

• Cows tooting

• Generating electricity

• Walking your dog

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How do scientists gather climate data?

• From space with satellites

• Weather stations around the world

• Ocean sensors

• Ice core samples

All of these gases contribute to greenhouse effect EXCEPT?

• water vapor

• methane

• carbon dioxide

• chlorofluorocarbons

• oxygen

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The amount of carbon dioxide absorbed by the upper layer of the oceans is increasing by about _____ tons per year

• 2 million

• 2 billion

• 2 trillion

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Summer temperatures are projected to continue rising, which will cause

• increase flooding

• increase drought

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